        .form_css {
            position: relative;
            width: 400px;
            height: 300px;
            margin: 0 auto;
        }
        .foot{
            width: 1000px;
            height: 10px;
            margin: 100px;
            margin-left: 300px;
            padding-left: 100px;
        }
        .input_cycle1{
            width: 250px;
            height: 30px;
            border-radius: 40px;
            outline: none;  // 去掉点击按钮后的边框
        }
        .input_cycle2{
            width: 250px;
            height: 30px;
            border-radius: 40px;
            outline: none;  // 去掉点击按钮后的边框
        }
        .input_cycle3{
            width: 250px;
            height: 30px;
            border-radius: 40px;
            outline: none;  // 去掉点击按钮后的边框
        }
        .h1{
            margin-left: 50px;
        }
        .input_cycle2.btn{
            position: absolute;
            top: 100px;
            right: 0;
            margin-left: 100px;
            background-color: #fff;
            border: none;   // 去掉边框
            outline: none;  // 去掉点击按钮后的边框
        }